By setting the degradation area in the test sections,and in the foundation of the road,at the top of the base surface and the concrete surface layer bottom are buried earth pressure box.Dynamic testing with two axes six wheeled vehicle under the speed of 20 km/h & 40 km/h in the condition of overloaded & load & no load.Analyzing test data obtained at the top of the base is directly related to the surface and subgrade earth pressure and the size of the vehicle axle load,and running speed,there is no obvious relationship between.Subgrade degradation area at the top of the base to the supporting capacity of concrete surface layer of low,concrete panel will transfer the load to the soil around degradation area%通过在试验路段设置劣化区,并在路基面、基层顶面和混凝土面层底面都埋设了动土压力盒,用两轴六轮汽车进行了超载、满载、空载下时速20 km/h和40 km/h下的动力测试.分析测试数据得到基层顶面和路基面动土压力的大小与汽车轴重直接相关,与行驶速度无明显关系,路基劣化区的基层顶给混凝土面层的支承力较低,混凝土面板将荷载传递给劣化区周围土层.
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